Multiple Updates - regions, versions, serverless

[markjbrown]

Purpose

• Added new regions for Azure OpenAI for deployment
• Updated packages to latest versions, including Azure OpenAI with breaking changes.
• Changed Cosmos DB to Serverless deployment

Does this introduce a breaking change?

[X] Yes
[ ] No

Pull Request Type

What kind of change does this Pull Request introduce?

[X] Bugfix
[X] Feature
[X] Code style update (formatting, local variables)
[] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe: